user/djvulibre: patch multiple CVEs (#185)

1 files changed, 94 insertions, 0 deletions

diff --git a/user/djvulibre/CVE-2019-15142.patch b/user/djvulibre/CVE-2019-15142.patch
new file mode 100644
index 000000000..84ed64e24
--- /dev/null
+++ b/user/djvulibre/CVE-2019-15142.patch
@@ -0,0 +1,94 @@
+Lifted from SUSE: backport of two upstream commits
+
+https://sourceforge.net/p/djvu/djvulibre-git/ci/970fb11a296b5bbdc5e8425851253d2c5913c45e
+https://sourceforge.net/p/djvu/djvulibre-git/ci/89d71b01d606e57ecec2c2930c145bb20ba5bbe3
+https://bugzilla.suse.com/show_bug.cgi?id=1146702#c3
+https://build.opensuse.org/package/view_file/graphics/djvulibre/djvulibre-CVE-2019-15142.patch
+
+Index: djvulibre-3.5.27/libdjvu/DjVmDir.cpp
+===================================================================
+--- djvulibre-3.5.27.orig/libdjvu/DjVmDir.cpp 2014-07-08 23:15:07.000000000 +0200
++++ djvulibre-3.5.27/libdjvu/DjVmDir.cpp 2019-09-02 13:46:28.076374501 +0200
+@@ -300,36 +300,44 @@ DjVmDir::decode(const GP<ByteStream> &gs
+          memcpy((char*) strings+strings_size, buffer, length);
+       }
+       DEBUG_MSG("size of decompressed names block=" << strings.size() << "\n");
+-   
+-         // Copy names into the files
++      int strings_size=strings.size();
++      strings.resize(strings_size+3);
++      memset((char*) strings+strings_size, 0, 4);
++      
++      // Copy names into the files
+       const char * ptr=strings;
+       for(pos=files_list;pos;++pos)
+       {
+          GP<File> file=files_list[pos];
+-
++         if (ptr >= (const char*)strings + strings_size)
++           G_THROW( "DjVu document is corrupted (DjVmDir)" );
+          file->id=ptr;
+          ptr+=file->id.length()+1;
+          if (file->flags & File::HAS_NAME)
+          {
+-            file->name=ptr;
+-            ptr+=file->name.length()+1;
+-         } else
++           file->name=ptr;
++           ptr+=file->name.length()+1;
++         }
++         else
+          {
+             file->name=file->id;
+          }
+          if (file->flags & File::HAS_TITLE)
+          {
+-            file->title=ptr;
+-       ptr+=file->title.length()+1;
+-         } else
+-       file->title=file->id;
+-   /* msr debug:  multipage file, file->title is null.  
++           file->title=ptr;
++           ptr+=file->title.length()+1;
++         }
++         else
++         {
++           file->title=file->id;
++         }
++         /* msr debug:  multipage file, file->title is null.  
+          DEBUG_MSG(file->name << ", " << file->id << ", " << file->title << ", " <<
+                    file->offset << ", " << file->size << ", " <<
+                    file->is_page() << "\n"); */
+       }
+ 
+-         // Check that there is only one file with SHARED_ANNO flag on
++      // Check that there is only one file with SHARED_ANNO flag on
+       int shared_anno_cnt=0;
+       for(pos=files_list;pos;++pos)
+       {
+Index: djvulibre-3.5.27/libdjvu/miniexp.cpp
+===================================================================
+--- djvulibre-3.5.27.orig/libdjvu/miniexp.cpp 2015-02-11 05:35:37.000000000 +0100
++++ djvulibre-3.5.27/libdjvu/miniexp.cpp 2019-09-02 13:46:28.072374476 +0200
+@@ -1028,7 +1028,7 @@ print_c_string(const char *s, char *d, i
+     {
+       if (char_quoted(c, flags))
+         {
+-          char buffer[10];
++          char buffer[16]; /* 10+1 */
+           static const char *tr1 = "\"\\tnrbf";
+           static const char *tr2 = "\"\\\t\n\r\b\f";
+           buffer[0] = buffer[1] = 0;
+Index: djvulibre-3.5.27/tools/csepdjvu.cpp
+===================================================================
+--- djvulibre-3.5.27.orig/tools/csepdjvu.cpp 2014-07-24 23:12:05.000000000 +0200
++++ djvulibre-3.5.27/tools/csepdjvu.cpp 2019-09-02 13:46:28.072374476 +0200
+@@ -1814,7 +1814,7 @@ main(int argc, const char **argv)
+                 ByteStream::create(GURL::Filename::UTF8(arg),"rb");
+               BufferByteStream ibs(*fbs);
+               do {
+-                char pagename[16];
++                char pagename[20];
+                 sprintf(pagename, "p%04d.djvu", ++pageno);
+                 if (opts.verbose > 1)
+                   DjVuPrintErrorUTF8("%s","--------------------\n");